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Shuja Uddin - Next.js + Supabase Developer

Fix it, build it, ship it

Fixes for apps built with Lovable, Bolt, Cursor and Replit, SaaS MVPs on Next.js and Supabase with Stripe, AI features and RAG chatbots, and Sanity CMS sites.

Four ways I can help

Same scope and prices as my Upwork catalog. Every job starts with a written plan, and you own the code and the hosting.

AI-Built App Rescue

I fix apps built with Lovable, Bolt, Cursor, Replit or Claude on React or Next.js with Supabase: login loops, failed deploys, payments that never confirm, and data any user can read.

20-point launch check before any fix
Auth, roles and row-level security fixed
Stripe payments and webhooks that confirm
Exposed keys, 500 errors and broken builds

AI Features & Chatbots

A feature that writes, summarises or generates inside your app, or a chatbot that answers from your own documents and shows its sources.

OpenAI, Gemini or Claude in your app
Document chatbots with sources (RAG)
Usage limits, credits and Stripe metering

Sanity CMS & Multilingual Sites

Next.js sites with an embedded Sanity Studio, WordPress migrations, and multi-language or Arabic right-to-left builds.

WordPress to Next.js + Sanity migrations
Multi-language sites (EN, FR, IT, ES)
Arabic right-to-left with full English

SaaS MVP Development

Login, a real database with access rules, your core features, Stripe billing and an admin view, built on Next.js and Supabase and deployed on accounts you own.

Sign-up, login and user roles
Supabase database with row-level security
Stripe subscriptions and customer portal
Admin dashboard and transactional emails

Frequently Asked Questions

Scope, prices and how the work runs.

Yes. I fix Lovable, Bolt, Cursor, Replit and Claude projects on React or Next.js with Supabase and Stripe. Every job starts with a 20-point launch check that shows what blocks launch and the price of each fix before I touch the code.

Book a free call to fix your app or plan your MVP

Mohammad Shuja Uddin offers free 30-minute calls to scope app fixes, SaaS MVPs and AI features. He replies within 24 hours.

Send me your app link and what is broken.

You get back what is wrong, what I would fix first and a fixed price, within 24 hours. No call needed.

Send Your App LinkOr book a free 30-minute call

How can I hire Shuja Uddin to fix my app or build an MVP?

Book a free 30-minute call on shuja.app, or hire him on Upwork or Fiverr. Send the app link, the repo and what goes wrong, and you will get a plan with a fixed price before any work starts. He works on Next.js, React and Supabase apps, including apps built with Lovable, Bolt, Cursor and Replit.